Novel fish way with inlet arrangement

A new type of fish pass technology, applied in water conservancy engineering, marine engineering, climate change adaptation, etc., can solve problems such as limited effect and poor fish pass migration effect.

Pending Publication Date: 2021-04-20
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the very important reasons is that most of the fishways are set up beside the dam, and the way of diverting water from the upstream of the dam and using various means to lure migratory fish to swim into the fishway is affected by the interference of the main channel, the influence of the environment, Factors such as the fish its

Method used

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  • Novel fish way with inlet arrangement
  • Novel fish way with inlet arrangement
  • Novel fish way with inlet arrangement

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1: as Figure 1~2 As shown, a new type of fishway arranged at the entrance includes a fishway 1 arranged obliquely. The fishway 1 is arranged in the mainstream area below the dam. To prevent the impact of flood discharge on the fishway, there is a water storage tank 2 above the fishway 1, and the water diversion pipe 3 is connected to the water storage tank 2. The water diversion pipe 3 is supplied with water through a drainage pump, and the side of the water storage tank 2 close to the fishway 1 is provided with an overflow Mouth 201, overflow port 201 is provided with deflector 4, is provided with fish collection box 5 below storage tank 2, and fish collection box 5 and storage tank 2 are fixed on one side of dam, is provided with fish driving mechanism in the fish collection box 5 5 ends of the fish collection box are provided with an auxiliary mechanism for fish turning over the dam.

[0035] Preferably, several baffles 24 are provided on the fishway 1 ....

Embodiment 2

[0052] Embodiment 2: as different from Embodiment 1 Figure 12 As shown, the auxiliary mechanism for fish overturning the dam is a traditional fishway 18 communicated with the fish collecting box 5 .

[0053] Fish collection box 5 end openings are communicated with traditional fishway 18, can arrange fish blocking net around, after migrating fish enters fish collection box 5 by crossing fishway 1 by above-mentioned process, will directly swim out from collection fish box 5 and enter big The fishway opened beside the dam realizes staged migration.

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Abstract

The invention provides a novel fish way with inlet arrangement. The novel fish way comprises an obliquely arranged fish way body, wherein a water storage tank is arranged at the top of the fish way body; a water diversion pipe communicates with the water storage tank; the water diversion pipe supplies water through a drainage pump; an overflow port is formed in the side, close to the fish way body, of the water storage tank; a flow guide plate is arranged at the overflow port; a fish collecting box is arranged below the water storage tank; a fish driving mechanism is arranged in the fish collecting box; and a fish dam turning auxiliary mechanism is arranged at the end part of the fish collecting box. The fish way has relatively high applicability to the surrounding environment of a dam and fishes, and the fish dam turning efficiency is improved.

Description

technical field [0001] The invention relates to the field of fishway-related equipment, in particular to a fishway with a novel inlet arrangement. Background technique [0002] Due to the construction of water conservancy and hydropower projects, the natural river course was cut off, blocking the natural migration channel of fish. As a remedial measure, the fishway is a kind of fish passing structure set up at the barrage dam to communicate the passage of fish migration. [0003] Many fishways have been built successively in our country. Due to various reasons, the utilization rate of fishways is generally not high. One of the very important reasons is that most of the fishways are set up beside the dam, and the way of diverting water from the upstream of the dam and using various means to lure migratory fish to swim into the fishway is affected by the interference of the main channel, the influence of the environment, Factors such as the fish itself have a great impact, r...

Claims

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Application Information

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IPC IPC(8): E02B8/08E02B1/00
CPCY02A40/60
Inventor 高振军李文杨张建波司长青
Owner CHINA THREE GORGES UNIV
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